Liquid dispensing device



Dec. 8, 1936. D. H. HAWES I LIQUID DISPENSING DEVICE Filed Sept. 29,1934 %HT-IVENTOR M ATTO R N EY5 Patented Dec. 8, 1936 UNITED STATES IZ,063,t36

PATENT OFFICE LIQUID DISPENSING DEVICE David H. Hawes, Bridgeport, Conn.

Application September 29, 1934, Serial No. 746,062

10 Claims.

This invention relates to new and useful improvements in brushes and hasparticular relation to: an automatic shaving brush.

An object of the invention is to provide a brush including means forfeeding a measured charge of liquid soap or the like into the bristlesof the brush.

Another object is to provide a brush including means whereby on a simplemanipulation a measured charge of liquid soap or the like is forced intothe brush bristles.

A further object is to provide a brush having the characteristicsstated, which is of relatively simple construction and is easilyoperated, and which may be easily cleaned by placing it under a faucetin the usual manner.

Other objects and advantages will become apparent from a considerationof the following detailed description taken in connection with theaccompanying drawing wherein a satisfactory embodiment of the inventionis shown. However, it will be understood that the invention is notlimited to the details disclosed but includes all such variations andmodifications as fall Within the spirit of the invention and the scopeof the appended claims.

In the drawing:

Fig. 1 is a view partly in elevation and partly in section showing theimproved brush with the handle thereof empty of liquid soap and with thesoap measuring and projecting parts in normal position, communicationbetween the interior of the handle and the bristles of the brush beingcut off;

Fig. 2 is an enlarged sectional view through the juncture of thebristles and handle, parts being broken away, and showing the measuringand projecting parts in their normal positions;

Fig. 3 is a view similar to Fig. 2 but showing the 40 locations of theparts at the beginning of the operation of projecting the soap into thebrush bristles;

Fig. 4 is a sectional view taken substantially along the line 44 of Fig.2;

Fig. 5 is a sectional view taken substantially along the line 5-5 ofFig. 3;

Fig. 6 is a view showing partly in elevation and partly in section thevarious parts of the mechanism in the order of their assembly;

Fig. 7 is a bottom plan view with a part broken away showing a bodymember employed;

Fig. 8 is a vertical sectional view through a control member employed;

Fig. 9 is a top plan view of the member of Fig. 8. 55' with parts brokenaway;

Fig. 10 is a side elevational view of a stop sleeve;

Fig. 11 is a side elevational view with parts broken away showing thecontrol member;

Fig. 12 is a top plan view of a plunger; and

Fig. 13 is a side elevational view of said plunger.

Referring in detail to the drawing, at I5 is generally indicated thehollow handle of the brush which handle comprises a container for aliquid, as soap, and at its open end is provided with a neck portion 16removably connected to an operating member I! located against one sideof a body H3 at the other side of which is located the brush head 19.The body I8 includes an upwardly extending annular flange 20 and adownwardly extending annular flange 2i internally screw threaded as at22. Further, this body includes a downwardly projecting tubularextension 23 including a bottom wall 24 perforated as at 25. Theextension 23 is concentric with the annular flange 2|, and in alignmentwith said extension 23 is an upwardly projecting extension 26 providedin its opposite sides with longitudinally extending slots 21 extendingthrough the outer end thereof and terminating slightly above the uppersurface of the inner or bottom wall 28 of the operating member [1 Brushhead 19 inclu les the bristles 29, the inner or butt ends of which areset in rubber as at 30, and which butt ends are received between metalrings 3| and 32 of which the latter is externally screw threaded forengagement with the threads 22 in the inner periphery of the dependingbody flange 2|. The inner ring 3| of the brush head is of a diameter torather snugly receive the inner extension 23 of the body member I8 asclearly shown in Figs. 1, 2 and 3, and when the brush head is threadedto the body member I8 the extension 23 of said member enters or projectsinto the brush head through the ring 3| thereof.

The operating member I! includes an annular wall 33 on its inner sidescrew threaded as at 34 for the reception of. the externally screwthreaded neck l6 of the handle and reservoir I5. The outer surface ofthe wall 33 is smooth and bears against the inner surface of theoutwardly or upwardly projecting annular flange 20 of the body l8 sothat it will be understood that the operating member is turnable on thebody. Member I! has an opening 35 therethrough and through whichprojects the upper or outer tubular extension 26 of the body, andextending upwardly at opposite sides of said opening are a pair of camportions 36 each having an inclined edge 31 extending from its lower endto a top flat surface 38 between the inclined surface 31 and thestraight vertical edge 39. As shown best at 40 in Figs. 8 and 11 thelower ends or the starts of the inclined edges 31 of the cam portion 36are flush with the upper or outer surface of the bottom wall 28 of themember |1 whereby such portions of the cam surfaces are slightly belowthe inner ends of the slots 21 of the body extension 26.

Cam portions 36 are transversely curved or are parts of. cylindricaltube so as to bear against the outer surfaces of the body extension 26,and it will be noted that said portions extend upwardly a substantialdistance at the outer side of said extension. A plunger 4| operates inthe body extensions 23 and 26, and this plunger while open at its upperend is provided with a bottom wall 42, and adjacent its upper endcarries laterally extending lugs 43 which lugs are received in andproject through the slots 21 in opposite sides of the body extension 26when the plunger is mounted on the body. Against the bottom wall 24 ofthe lower body extension 23 there is arranged a rubber or other ring 44and when the plunger 4| is in normal position it is seated against thisring forming therewith a seal and preventing the movement of liquid fromthe hollow handle l5 into the head of the brush.

Inwardly of its outer end the upper body extension 26 is provided withlateral slots 45 each opening into one of the longitudinal slots 21 of.said extension and each notched in its upper side at its inner end as at46 (see Fig. 6). When the plunger 4| is dropped into place a coil spring41 is inserted into the extension 26 and the lower or inner end of thisspring enters the hollow plunger as in Figs. 1, 2 and 6. The upper endof said spring 41 bears against a cap 48 including on its underside anannular flange 49 providing a pocket-like portion 50 for the receptionof said upper portion of the spring.

Lugs 5| extend from opposite sides of the flange 49 and when applyingthe cap 48 the same is manipulated to have its pocket 50 receive theupper end of the spring 41 and to bring its lugs 5| into alignment withthe longitudinal slots 21 of the body extension 26. Thereafter, the capis forced downwardly to bring its lugs 5| opposite the entrances to thelateral slots 45 and the cap is given a slight turn to carry its lugs tothe inner ends of said slots. Thereafter, on the cap being released, thespring in attempting to force the cap outwardly will shift the cap todispose its lugs 5| in the notches 46 in the upper edges of the slots 45so that the cap is held against casual turning movement.

On its outer surface each cam portion 36 is provided with a lug 52 andbefore the cap 48 is assembled on the device-as above explained butafter the plunger 4| is in the body a stop sleeve 53 is applied. Thissleeve is provided with notches 54 opening through its lower end and thesleeve is mounted by passing it over the body extension 26 andpositioning it with the lugs 52 of the cam portions in the notches orrecesses 54 of the sleeve. With this construction the sleeve 53 willturn with the operating member I1, and on the inner surface of thesleeve are a pair of longitudinal lugs or ribs 55 so located withrespect to one another and to the notches 54 that when the sleeve is onthe cam portions 36 of the operating member each lug 53 has one of itsvertical edges located opposite and in such spaced relation to avertical edge 39 of a cam portion 36 as to leave a vertical passagewayequal to the width of a laterally projecting lug 43 of the plunger 4|.Owing to the length of the lugs 55 the mentioned vertical edge of eachlug projects above and below the flat or free end 38 of that cam portion36 with which it is associated.

In assembling the brush the head l9 may be threaded to the flange 2| of.the body I8 and then the operating member |1 may be applied to the otherside of the body. Thereafter the plunger M is dropped into place withits lugs 43 extending through the longitudinal slots 21 in the outer orupper body extension 26. With the plunger in position the stop sleeve 53may be applied by positioning it on the operating member with the lugs52 of. the cam portion of the latter in the recesses 54 in the loweredge of the sleeve. The coil spring 41 may now be applied by insertingthe inner end thereof into the plunger and the cap 48 may then bepositioned as above described and to secure the coil spring. If desired,a suitable spring means as, for example, the spring washer 56 may beinterposed between the flange of the cap 48 and the upper end of thestop sleeve 53 and this spring washer will act to hold such sleeve inposition and will also act to exert an outward pressure on the cap 48 tomaintain the lugs 5| thereof in the recesses 46 of the slots 45.

With the parts assembled as described the lower end of the plunger 4|will be against the ring 44 and form therewith a seal and the plungerwill be held in this position by the coil spring 41. The hollow handleor reservoir |5 substantially filled with liquid shaving soap may thenbe secured to the operating member H as by threading the neck I 6 ofsaid handle into the operating member with the cam portions 36 and thebody extension 26 and parts carried thereby located within the handle.The plunger lugs 43 are normally, that is, when the plunger is in normalposition, located at the inner ends of. the longitudinal slots 21 of thebody extension 26 and in the path of cam surfaces 31.

If it is now desired to use the brush the body |8 thereof and theoperating member H are given a relative turning movement with the deviceheld in an upright position with the bristles or head l9 down as shownin Fig. 1. This may be accomplished by holding the brush head as bygripping knurled surfaces 20a of the body 8 and turning the handle i5 orvice versa, or by gripping the body and the operating member by knurledsurfaces Hu and turning one of them relative-to the other or turningthem in opposite directions. It will be understood that the handle l5being screw threaded to the operating member l1 these two parts willturn together, and that the brush head l9 being screw threaded to thebody |8 such two parts will turn together.

When a relative turning movement between the body It! and the operatingmember |1 takes place the inclined cam surfaces 31 passing beneath andacting against the lugs 43 of the plunger act to retract the plunger orlift it upwardly away from its seat on the ring 44 and into a positionin the upper or outer body extension 26 above the lower ends of theslots 21 thereof as in Fig. 3. With the slots thus opened liquid fromthe handle enters the body extensions 23 and 26 so that the formerbecomes filled. As the turn ing movement continues the inclined camsurfaces 31 move from under the lugs 43 of the plunger and while theflat surfaces 38 of the cam portions move under such lugs the plunger ismaintained retracted against the action of the coil spring 41 so thatthere is a short time interval during which the plunger remainsstationary.

This is to insure the filling of the lower body extension 23 before therelease of the plunger.

As the flats 38 of the cam portions 36 move from beneath the plungerlugs 43 the spring 41 forces the plunger to normal position causing theplunger to project the predetermined or measured charge of liquid fromthe body extension 23 into the brush head through the openings orperforations 25 in the bottom wall 24 of said extension. It will beappreciated that during its return movement the plunger as its lower endpasses the inner ends of the slots 2! closes off said slots preventingthe escape of the liquid from the body extension 23 into the handle sothat said liquid must pass outwardly through the perforations 25 intothe brush head. The lugs 55 of the stop sleeve '53 act as stops orlimiting means so that if the relative turning movement referred to israpid the plunger lugs 43 cannot be carried over to a-position above theinclined cam surfaces 31 Which would act to prevent the plunger reachingnormal'position. If the movement is rapid then the plunger lugs 43 willsimply engage the lugs 55 of the sleeve 53 and further relative turningmovement of the parts is prevented until after the plunger has beenreturned to normal position to carry the plunger lugs 43 below the lowerends of the lugs or ribs 55.

From the foregoing description it will be clear that on each one-halfrelative rotation of the operating member I! and the body IS a measuredcharge of liquid will be forced into the brush head I9. It should beunderstood that the soap or other -material in the handle I should be ofproper consistency to flow into the cylinders 26 and 23 after theplunger is raised and then forced through the openings 25 by theplunger. A liquid soap has been found satisfactory. According to thepresent plan when the handle l5 has been emptied it will be discardedand another receptacle of liquid will be threaded to the operatingmember in place thereof. These refill reservoirs may be furnished closedwith a cap, and when one becomes empty it may be removed from the brushand the brush with the associated feed device attached to the new andfilled reservoir making the device again ready for use. The brush may becleaned by washing under a faucet in the usual manner.

Having thus set forth the nature of my invention, what I claim is:

1. In a device of the character described, a body having a dischargeopening, an operating member turnable on said body, a liquid container,and means mounted on said body and extending into said container andoperable by said operating member on relative turning movement of saidbody and operating member to force liquid from said container throughsaid discharge opening.

2. In a device of the character described, a body having a dischargeopening, an operating member at one side of the body and turnablethereon, a liquid container, and means mounted on said body andextending through and operable by said operating member to force liquidfrom the container through the discharge opening on relative turningmovement of the operating member and body.

3. In a device of the character described, a body having a dischargeopening, an operating member at one side of the body and turnablethereon, a liquid container, and means mounted on said body andextending through and operable by said operating member to force ameasured charge of liquid from the container through said opening onrelative turning movement of the operating member and body.

4. In a device of the character described, a body having a dischargeopening, an operating member at one side of said body and turnablethereon, a liquid container having an open end secured to said operatingmember, a passage from said container to said discharge opening, aplunger normally closing said passage, cam means to move said plungerfrom normal position on relative turning of the body and operatingmember to admit liquid from the container into said passage, and springmeans to return said plunger to normal position and have it force theliquid from the passage through the opening.

5. In a device of the character described, a body having a dischargeopening, an operating member at one side of said body and turnablethereon, a liquid container having an open end secured to said operatingmember, a passage from said container to said discharge opening, aplunger normally closing said passage, cam means to retract said plungera predetermined distance from normal position and then release it onrelative turning of the operating member and body to admit apredetermined quantity of liquid from the container into the passage,and spring means operable on release of the plunger by the cam means toreturn the plunger to normal position and have it force thepredetermined quantity of liquid from the passage through the opening.

6. In a device of the character described, a body having a dischargeopening, an operating member at one side of said body and turnablethereon, a liquid container having an open end secured to said operatingmember, a passage from said container to said opening, a plunger, aspring normally maintaining said plunger in position in and closing saidpassage, and cam means on said operating member and operable to retractsaid plunger a predetermined distance against the action of said springand thenrelease the plunger, whereby to admit a predetermined quantityof liquid into the passage from the container and then have said liquidforced from the passage through the opening by the plunger as it isreturned to normal position by the spring.

7. In a device of the character described, a body having a dischargeopening, an operating member at one side of said body and turnablethereon, a liquid container having an open end secured to said operatingmember, a tubular member extending into the container and pro-- viding apassage from the container to the body, said tubular member having anopening in its side within the container and having its end within thebody partially closed, a sealing ring within the body end of saidtubular member, a plunger in said tubular member, a spring normallymaintaining said plunger in position on said sealing ring closing saidpassage, and cam means on said operating member and operable to retractsaid plunger a predetermined distance to expose the opening in the sideof the tubular member to admit liquid into the latter from the containerand then release the plunger, whereby toiadmit a predetermined quantityof liquid into the tubular member from the container and then have saidliquid forced from the tubular member through the discharge opening bythe plunger as it is returned to normal position by the spring.

8. In a device adapted to be used in a fountain brush for feeding soap,a hollow handle comprising a reservoir, a body member having a dischargeopening and a tubular extension communicating with said reservoir, anoperating member at one side of said body and rotatable about saidtubular extension, said extension having slots in itsopposite walls, aplunger in said extension and having oppositely extending lugsprojecting through said slots, a spring normally maintaining saidplunger in an inner position closing communication between the interiorof the handle and the discharge opening, and said operating memberincluding cam portions at the sides of said extension and each includingan inclined cam surface and a straight'vertical edge whereby on relativerotation of the operating and body members the plunger is drawn intosaid extension by engagement of the cam surfaces with the lateral lugsof the plunger to permit liquid from the handle to enter the extensionand is released on the lugs and cam surfaces passing whereby to have thespring operate the plunger to force the liquid from the said extensionthrough the discharge opening.

9. In a device adapted to be used in a fountain brush for feeding soap,a hollow handle comprising a reservoir, a body member having a dischargeopening and a tubular extension communicating with said. reservoir, anoperating member at one side of said body, and rotatable about saidtubular extension, said extension having slots in its opposite walls, aplunger in said extension and having oppositely extending lugsprojecting through said slots, a spring normally maintaining saidplunger in an inner position closing communication between the interiorof the handle and the discharge opening, said operating member includingcam portions at the,

sides of said extension and each including an inclined cam surface and astraight vertical edge whereby on relative rotation of the operating andbody members the plunger is drawn into said extension by engagement ofthe cam surfaces with the lateral lugs of the plunger to permit liquidfrom the handle to enter the extension and is released, on the lugs andcam surfaces passing whereby to have the spring operate the plunger toforce the liquid from the extension through the discharge opening, astop sleeve on and extending above said cam portions, and lugs on theinner side of said sleeve and spaced from the vertical edges of the camportions a distance equal to the widths of the plunger lugs to limitrelative turning movement of the plunger and operating member on thelugs passing off the cam portions of the latter. a

10. In a device adapted to be used in a fountain brush for feeding soap,a hollow handle comprising a reservoir, a body member having a dischargeopening and a tubular extension communicating with said reservoir, anoperating member rotatable about said tubular extension, said extensionhaving slots in its opposite walls, a plunger in said extension andhaving oppositely extending lugs projecting through said slots, a coilspring in said tubular extension and bearing at one end against theplunger and normally maintaining said plunger in an inner positionclosing communication between the interior of the handle and thedischarge opening, a removable cap on the outer end of said tubularextension and against which the other end of said spring bears, and saidoperating member including cam portions at the side of said extensionand each including an inclined cam surface and a straight vertical edgewhereby on relative rotation of the operating and body members theplunger is drawn into said extension by engagement of the cam surfaceswith the lateral lugs of the plunger to permit liquid from the handle toenter the extension and is released on the lugs and cam surfaces passingwhereby to have the spring operate the plunger to force the liquid fromthe extension through the discharge opening.

DAVID H. HAWES.

